Polymeric compositions containing microspheres
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsTeddy M Keller, Matthew Laskoski
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Abstract
Disclosed herein is a composition having a thermoset polymer and a plurality of hollow microsphere homogenously dispersed in the composition. The polymer is a cyanate ester thermoset, a phthalonitrile thermoset, a crosslinked acetylene thermoset, or a hydrosilation thermoset. Also disclosed herein is a method of: providing a thermosetting compound; adding microspheres to the thermosetting compound; and mixing the thermosetting compound while initiating crosslinking of the thermosetting compound.
Claims9
A composition comprising:
- a cyanate ester thermoset polymer;
- and
- 1 wt % to about 35 wt % of hollow microspheres homogenously dispersed in the composition,
- wherein the composition is made by:
- providing a cyanate ester compound;
- initiating crosslinking of the cyanate ester compound;
- stirring the initiated cyanate ester compound until the polymerization reaches the B-stage;
- adding hollow microspheres to the B-stage polymer;
- and mixing the B-stage polymer and the microspheres.
A method for preparing a product comprising:
- providing a cyanate ester compound;
- initiating crosslinking of the cyanate ester compound;
- stirring the initiated cyanate ester compound until the polymerization reaches the B-stage;
- adding hollow microspheres to the B-stage polymer;
- and
- mixing the B-stage polymer and the microspheres to form a composition comprising from about 1 wt % to about 35 wt % of homogeneously dispersed microspheres and cyanate ester thermoset polymer.
Dependencies are inferred from the claim text.